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Modified Heyman packing performed with small number of Simon-Norman catheters
Jenö Pálvölgyi1, Kofi Agyemang-Prempeh1
1Department for Oncoradiology, Petz County Teaching Hospital, Györ, Hungary.
Purpose:
Modified Heyman packing method, performed usually with 6-11 flexible catheters is one out of many brachytherapy treatments. We described the insertion and dose planning method, with the use of 4-6 Simon-Norman catheters positioned to the fundus uteri, which is the most frequent source of the endometrial cancer.
Material And Methods:
We investigated the dose distribution of the main classes of regular catheter insertions with Simon-Norman applicators using dose profiles, obtained in lateral and axial direction at the fundus, and compared with the dose distribution of the Y-shaped catheter arrangements.
Results:
The insertions with five and six Simon-Norman catheters produced higher dose at the fundus uteri, compared with the Y-shaped applicator.
Conclusions:
Insertions performed with small number of catheters permits to perform dosimetry optimisation for each treatment fraction.
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